panic: kernel diagnostic assertion "uvm_page_owner_locked_p(pg)" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_page.c", line 1269 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 183180 82213 0 0 0x4000000 1 syz-executor.6 *132677 54377 0 0x14000 0x200 0K reaper db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff825ab66f) at panic+0x177 sys/kern/subr_prf.c:198 __assert(ffffffff8261ef84,ffffffff825962d9,4f5,ffffffff825cca51) at __assert+0x25 sys/kern/subr_prf.c:157 uvm_pageunwire(fffffd800703a600) at uvm_pageunwire+0x16b sys/uvm/uvm_page.c:1269 uvm_fault_unwire_locked(fffffd807cd915f0,afbcb522000,afbcb721000) at uvm_fault_unwire_locked+0x226 sys/uvm/uvm_fault.c:1682 uvm_unmap_kill_entry_withlock(fffffd807cd915f0,fffffd8078d6b268,0) at uvm_unmap_kill_entry_withlock+0x67 sys/uvm/uvm_map.c:1913 uvm_map_teardown(fffffd807cd915f0) at uvm_map_teardown+0x197 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline] uvm_map_teardown(fffffd807cd915f0) at uvm_map_teardown+0x197 sys/uvm/uvm_map.c:2562 uvmspace_free(fffffd807cd915f0) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3480 reaper(ffff800021232fc8) at reaper+0x19a sys/kern/kern_exit.c:448 end trace frame: 0x0, count: 6 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs. ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: kernel diagnostic assertion "uvm_page_owner_locked_p(pg)" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_page.c", line 1269 ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff825ab66f) at panic+0x177 sys/kern/subr_prf.c:198 __assert(ffffffff8261ef84,ffffffff825962d9,4f5,ffffffff825cca51) at __assert+0x25 sys/kern/subr_prf.c:157 uvm_pageunwire(fffffd800703a600) at uvm_pageunwire+0x16b sys/uvm/uvm_page.c:1269 uvm_fault_unwire_locked(fffffd807cd915f0,afbcb522000,afbcb721000) at uvm_fault_unwire_locked+0x226 sys/uvm/uvm_fault.c:1682 uvm_unmap_kill_entry_withlock(fffffd807cd915f0,fffffd8078d6b268,0) at uvm_unmap_kill_entry_withlock+0x67 sys/uvm/uvm_map.c:1913 uvm_map_teardown(fffffd807cd915f0) at uvm_map_teardown+0x197 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline] uvm_map_teardown(fffffd807cd915f0) at uvm_map_teardown+0x197 sys/uvm/uvm_map.c:2562 uvmspace_free(fffffd807cd915f0) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3480 reaper(ffff800021232fc8) at reaper+0x19a sys/kern/kern_exit.c:448 end trace frame: 0x0, count: -9 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff8000212399f0 rbx 0xffffffff829d4b8f cpu_info_full_primary+0x2b8f rdx 0 rcx 0 rax 0xffff800021232fc8 r8 0x101010101010101 r9 0x8080808080808080 r10 0x843426cc523d35b1 r11 0x1a74aac1e1ccf066 r12 0xffffffff829d4990 cpu_info_full_primary+0x2990 r13 0 r14 0 r15 0x1 rip 0xffffffff817a5ce8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff8000212399e0 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (reaper) pid=132677 stat=onproc flags process=14000 proc=200 pri=84, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800021233508,0xffff8000212327f8 process=0xffff8000fffff608 user=0xffff800021234000, vmspace=0xffffffff829f5638 estcpu=36, cpticks=71, pctcpu=22.93 user=0, sys=70, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 82213 505303 60918 0 2 0 syz-executor.6 82213 183180 60918 0 7 0x4000000 syz-executor.6 23719 285926 10422 0 2 0x482 syz-executor.1 96673 213255 10422 0 2 0x482 syz-executor.7 22393 183223 10422 0 3 0x82 wait syz-executor.3 59128 82128 10422 0 3 0x82 wait syz-executor.2 72296 95416 10422 0 3 0x82 wait syz-executor.4 60918 283767 10422 0 2 0x482 syz-executor.6 47678 512875 10422 0 3 0x82 wait syz-executor.5 81591 388919 1 0 3 0x100083 ttyin getty 86413 269366 0 0 3 0x14200 acct acct 48920 62357 0 0 3 0x14280 nfsidl nfsio 21392 111036 0 0 3 0x14280 nfsidl nfsio 14861 81414 0 0 3 0x14280 nfsidl nfsio 94507 174529 0 0 3 0x14280 nfsidl nfsio 96297 429653 0 0 3 0x14280 nfsidl nfsio 81300 303566 0 0 3 0x14280 nfsidl nfsio 10198 281045 0 0 3 0x14280 nfsidl nfsio 97904 352869 0 0 3 0x14280 nfsidl nfsio 2476 504961 0 0 3 0x14280 nfsidl nfsio 83563 304037 0 0 3 0x14280 nfsidl nfsio 97810 88519 0 0 3 0x14280 nfsidl nfsio 14118 145514 0 0 3 0x14280 nfsidl nfsio 12799 215157 0 0 3 0x14280 nfsidl nfsio 75454 187811 0 0 3 0x14280 nfsidl nfsio 11113 288329 0 0 3 0x14280 nfsidl nfsio 71030 303611 0 0 3 0x14280 nfsidl nfsio 58831 445529 0 0 3 0x14280 nfsidl nfsio 1043 293291 0 0 3 0x14280 nfsidl nfsio 74682 31688 0 0 3 0x14280 nfsidl nfsio 50330 247081 0 0 3 0x14280 nfsidl nfsio 28930 371060 0 0 3 0x14200 bored sosplice 10422 168744 86565 0 3 0x82 wait syz-fuzzer 10422 433597 86565 0 2 0x4000482 syz-fuzzer 10422 295722 86565 0 3 0x4000082 wait syz-fuzzer 10422 426351 86565 0 2 0x4000482 syz-fuzzer 10422 51179 86565 0 3 0x4000082 thrsleep syz-fuzzer 10422 176398 86565 0 3 0x4000082 wait syz-fuzzer 10422 439738 86565 0 3 0x4000082 thrsleep syz-fuzzer 10422 337625 86565 0 3 0x4000082 thrsleep syz-fuzzer 10422 123063 86565 0 3 0x4000082 thrsleep syz-fuzzer 10422 135346 86565 0 3 0x4000082 wait syz-fuzzer 10422 175834 86565 0 3 0x4000082 wait syz-fuzzer 10422 309185 86565 0 3 0x4000082 thrsleep syz-fuzzer 10422 130981 86565 0 3 0x4000082 thrsleep syz-fuzzer 10422 92427 86565 0 3 0x4000082 wait syz-fuzzer 10422 183729 86565 0 3 0x4000082 wait syz-fuzzer 10422 473526 86565 0 3 0x4000082 thrsleep syz-fuzzer 86565 186150 42707 0 3 0x10008a sigsusp ksh 42707 435677 57109 0 3 0x9a kqread sshd 57109 285529 1 0 3 0x88 kqread sshd 99331 248486 91552 74 2 0x1100492 pflogd 91552 465586 1 0 3 0x80 netio pflogd 41024 48922 56708 73 2 0x1100010 syslogd 56708 176819 1 0 3 0x100082 netio syslogd 55384 131434 1 0 3 0x100080 kqread resolvd 43942 393368 80681 77 3 0x100092 kqread dhcpleased 63715 381588 80681 77 3 0x100092 kqread dhcpleased 80681 80949 1 0 3 0x80 kqread dhcpleased 9750 240694 0 0 3 0x14200 bored smr 39405 345958 0 0 2 0x14200 zerothread 91250 275362 0 0 3 0x14200 aiodoned aiodoned 9793 104305 0 0 3 0x14200 syncer update 68387 37144 0 0 3 0x14200 cleaner cleaner *54377 132677 0 0 7 0x14200 reaper 21207 176623 0 0 3 0x14200 pgdaemon pagedaemon 68981 268494 0 0 3 0x14200 bored viomb 82795 95932 0 0 3 0x40014200 acpi0 acpi0 71124 5019 0 0 3 0x40014200 idle1 3987 515984 0 0 3 0x14200 bored softnet 76848 419913 0 0 3 0x14200 bored softnet 67741 76632 0 0 2 0x14200 softnet 60715 204079 0 0 3 0x14200 bored softnet 47135 106787 0 0 3 0x14200 bored systqmp 69788 255932 0 0 3 0x14200 bored systq 78538 121318 0 0 2 0x40014200 softclock 69515 511653 0 0 3 0x40014200 idle0 1 377055 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex &uvm.pageqlock r = 0 (0xffffffff82bac968) #0 witness_lock+0x44d #1 mtx_enter_try+0x100 #2 mtx_enter+0x4b sys/kern/kern_lock.c:266 #3 uvm_fault_unwire_locked+0x21e sys/uvm/uvm_fault.c:1681 #4 uvm_unmap_kill_entry_withlock+0x67 sys/uvm/uvm_map.c:1913 #5 uvm_map_teardown+0x197 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline] #5 uvm_map_teardown+0x197 sys/uvm/uvm_map.c:2562 #6 uvmspace_free+0xa6 sys/uvm/uvm_map.c:3480 #7 reaper+0x19a sys/kern/kern_exit.c:448 #8 proc_trampoline+0x1c Process 41024 (syslogd) thread 0xffff8000ffff7cf0 (48922) exclusive rrwlock inode r = 0 (0xfffffd806e7823d0) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:465 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 sys_fsync+0xf5 sys/kern/vfs_syscalls.c:2935 #6 syscall+0x435 mi_syscall sys/sys/syscall_mi.h:101 [inline] #6 syscall+0x435 sys/arch/amd64/amd64/trap.c:585 #7 Xsyscall+0x128 Process 54377 (reaper) thread 0xffff800021232fc8 (132677) exclusive rwlock uobjlk r = 0 (0xfffffd80745ff470) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 uvm_fault_unwire_locked+0x1c6 sys/uvm/uvm_fault.c:1669 #3 uvm_unmap_kill_entry_withlock+0x67 sys/uvm/uvm_map.c:1913 #4 uvm_map_teardown+0x197 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline] #4 uvm_map_teardown+0x197 sys/uvm/uvm_map.c:2562 #5 uvmspace_free+0xa6 sys/uvm/uvm_map.c:3480 #6 reaper+0x19a sys/kern/kern_exit.c:448 #7 proc_trampoline+0x1c exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82aaf1f0) #0 witness_lock+0x44d #1 uvm_unmap_kill_entry_withlock+0x4c sys/uvm/uvm_map.c:1911 #2 uvm_map_teardown+0x197 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline] #2 uvm_map_teardown+0x197 sys/uvm/uvm_map.c:2562 #3 uvmspace_free+0xa6 sys/uvm/uvm_map.c:3480 #4 reaper+0x19a sys/kern/kern_exit.c:448 #5 proc_trampoline+0x1c exclusive mutex &uvm.pageqlock r = 0 (0xffffffff82bac968) #0 witness_lock+0x44d #1 mtx_enter_try+0x100 #2 mtx_enter+0x4b sys/kern/kern_lock.c:266 #3 uvm_fault_unwire_locked+0x21e sys/uvm/uvm_fault.c:1681 #4 uvm_unmap_kill_entry_withlock+0x67 sys/uvm/uvm_map.c:1913 #5 uvm_map_teardown+0x197 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline] #5 uvm_map_teardown+0x197 sys/uvm/uvm_map.c:2562 #6 uvmspace_free+0xa6 sys/uvm/uvm_map.c:3480 #7 reaper+0x19a sys/kern/kern_exit.c:448 #8 proc_trampoline+0x1c ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10227 6505K 7262K 78643K 35817 0 pcb 13 16K 18K 78643K 2365 0 rtable 170 16K 20K 78643K 3698 0 ifaddr 132 31K 34K 78643K 1425 0 sysctl 2 0K 0K 78643K 4 0 counters 52 35K 36K 78643K 676 0 ioctlops 0 0K 8K 78643K 5369 0 iov 0 0K 28K 78643K 1870 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1427 89K 89K 78643K 10264 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 124 0 VM map 2 1K 1K 78643K 2 0 sem 17 10K 20K 78643K 803 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 10 33K 77K 78643K 15217 0 sigio 0 0K 0K 78643K 222 0 proc 72 91K 140K 78643K 3064 0 subproc 91 5K 6K 78643K 958 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 406 0 in_multi 62 4K 6K 78643K 1199 0 ether_multi 1 0K 0K 78643K 107 0 mrt 1 0K 0K 78643K 41 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 175 784K 784K 78643K 175 0 exec 0 0K 2K 78643K 4554 0 pfkey data 0 0K 0K 78643K 15 0 tdb 3 0K 0K 78643K 3 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 8 62K 64K 78643K 10 0 UVM amap 490 833K 847K 78643K 92695 0 UVM aobj 131 8K 8K 78643K 137 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 1621 0 NDP 14 0K 2K 78643K 390 0 temp 137 4734K 70270K 78643K 175321 0 kqueue 12 18K 24K 78643K 1120 0 SYN cache 2 16K 16K 78643K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 1398 0 1395 23 22 1 3 0 8 0 rtentry 112 1021 0 957 4 1 3 4 0 8 0 unpcb 144 8951 0 8936 110 109 1 10 0 8 0 syncache 296 51 0 51 13 13 0 1 0 8 0 tcpqe 32 76 0 76 4 4 0 1 0 8 0 tcpcb 768 11862 0 11858 302 298 4 22 0 8 3 arp 120 151 0 139 1 0 1 1 0 8 0 inpcb 368 20768 0 20761 247 243 4 16 0 8 3 ip6q 72 16 0 16 5 5 0 1 0 8 0 ip6af 40 41 0 41 5 5 0 1 0 8 0 nd6 48 256 0 241 1 0 1 1 0 8 0 pkpcb 40 27 0 27 8 8 0 1 0 8 0 kcovpl 48 72 0 65 1 0 1 1 0 8 0 ppxss 1256 174 0 174 25 25 0 1 0 8 0 pppxif 1704 64 0 64 10 10 0 1 0 8 0 pfstscr 40 19 0 16 3 2 1 1 0 8 0 pffrag 232 48 0 47 5 4 1 1 0 482 0 pffrnode 88 48 0 47 5 4 1 1 0 8 0 pffrent 40 214 0 213 6 5 1 1 0 8 0 pfosfp 40 1428 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfrktable 1344 297 0 296 5 4 1 2 0 8 0 pfanchor 1280 866 8 354 47 4 43 43 0 8 0 pftag 88 4 0 0 1 0 1 1 0 8 0 pfqueue 264 4 0 4 2 2 0 1 0 8 0 pfstitem 24 28 0 23 1 0 1 1 0 8 0 pfstkey 120 46 0 43 1 0 1 1 0 8 0 pfstate 336 38 0 33 2 1 1 2 0 8 0 pfrule 1360 550 0 533 5 3 2 3 0 8 0 rttmr 136 13 0 13 5 5 0 1 0 8 0 art_heap8 4096 2 0 1 2 1 1 2 0 8 0 art_heap4 256 4717 0 4431 63 44 19 29 0 8 0 art_table 32 4719 0 4432 4 1 3 4 0 8 0 art_node 16 1020 0 965 1 0 1 1 0 8 0 semupl 112 4 0 4 1 1 0 1 0 8 0 semapl 112 789 0 774 1 0 1 1 0 8 0 shmpl 112 134 0 6 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 21708 0 20207 95 0 95 95 0 8 0 ffsino 272 21708 0 20207 101 0 101 101 0 8 0 nchpl 144 41443 0 39807 63 0 63 63 0 8 0 rtmask 32 4 0 4 2 2 0 1 0 8 0 uvmvnodes 80 7314 0 0 150 0 150 150 0 8 0 vnodes 216 7314 0 0 407 0 407 407 0 8 0 namei 1024 156062 0 156062 9 8 1 2 0 8 1 percpumem 16 350 0 312 1 0 1 1 0 8 0 vcpupl 2048 119 0 0 15 0 15 15 0 8 0 vmpool 568 142 0 23 9 0 9 9 0 8 0 pfiaddrpl 120 48 0 48 4 4 0 1 0 8 0 kstatmem 264 436 0 408 5 2 3 3 0 8 0 scsiplug 72 21 0 21 6 6 0 1 0 8 0 scxspl 216 129478 0 129478 50 49 1 8 0 8 1 plimitpl 152 1804 0 1787 1 0 1 1 0 8 0 sigapl 424 15427 0 15358 9 1 8 8 0 8 0 futexpl 64 135229 0 135229 4 3 1 1 0 8 1 knotepl 120 1054 0 0 16 0 16 16 0 8 0 kqueuepl 216 2701 0 2693 46 45 1 8 0 8 0 pipepl 320 2885 0 2860 71 68 3 11 0 8 0 fdescpl 496 15388 0 15365 5 0 5 5 0 8 0 filepl 152 112443 0 112222 170 156 14 20 0 8 4 lockfpl 104 4821 0 4819 12 11 1 3 0 8 0 lockfspl 48 1258 0 1256 2 1 1 2 0 8 0 sessionpl 144 91 0 74 1 0 1 1 0 8 0 pgrppl 48 237 0 220 1 0 1 1 0 8 0 ucredpl 104 14304 0 14289 1 0 1 1 0 8 0 zombiepl 144 15365 0 15358 3 2 1 1 0 8 0 processpl 1064 15427 0 15358 5 0 5 5 0 8 0 procpl 672 44657 0 44566 27 18 9 10 0 8 0 srpgc 96 82 0 82 21 21 0 1 0 8 0 sosppl 168 105 0 105 18 18 0 1 0 8 0 sockpl 488 31193 0 31168 546 538 8 34 0 8 4 mcl64k 65536 22 0 0 3 1 2 3 0 8 0 mcl16k 16384 25 0 0 4 2 2 3 0 8 0 mcl12k 12288 50 0 0 2 0 2 2 0 8 0 mcl9k 9216 25 0 0 2 0 2 2 0 8 0 mcl8k 8192 33 0 0 4 1 3 3 0 8 0 mcl4k 4096 42 0 0 3 0 3 3 0 8 0 mcl2k2 2112 11 0 0 1 0 1 1 0 8 0 mcl2k 2048 435 0 0 40 13 27 40 0 8 0 mtagpl 96 901 0 0 12 1 11 11 0 8 0 mbufpl 256 6900 0 0 430 0 430 430 0 8 0 bufpl 288 28860 0 21539 524 0 524 524 0 8 0 anonpl 24 3124019 0 3103465 318 182 136 191 0 186 0 amapchunkpl 152 274066 0 273058 137 95 42 63 0 158 0 amappl16 200 43010 0 42340 171 134 37 60 0 8 0 amappl15 192 2030 0 2016 1 0 1 1 0 8 0 amappl14 184 1149 0 1144 1 0 1 1 0 8 0 amappl13 176 1399 0 1397 1 0 1 1 0 8 0 amappl12 168 3552 0 3547 2 1 1 1 0 8 0 amappl11 160 2729 0 2711 1 0 1 1 0 8 0 amappl10 152 903 0 897 1 0 1 1 0 8 0 amappl9 144 2051 0 2038 1 0 1 1 0 8 0 amappl8 136 5075 0 4939 6 1 5 6 0 8 0 amappl7 128 3402 0 3381 1 0 1 1 0 8 0 amappl6 120 1760 0 1724 19 17 2 2 0 8 0 amappl5 112 11775 0 11756 1 0 1 1 0 8 0 amappl4 104 6106 0 6065 3 1 2 2 0 8 0 amappl3 96 49715 0 49651 2 0 2 2 0 8 0 amappl2 88 18976 0 18893 3 1 2 3 0 8 0 amappl1 80 368821 0 367998 24 6 18 22 0 8 0 amappl 88 90774 0 90532 8 2 6 6 0 92 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 253 0 253 1 1 0 1 0 8 0 dma64 64 6 0 6 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 136 0 6 3 0 3 3 0 8 0 uaddrrnd 24 15530 0 15382 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 15530 0 15382 1 0 1 1 0 8 0 vmmpekpl 168 123325 0 123250 5 0 5 5 0 8 0 vmmpepl 168 1532473 0 1529085 502 342 160 180 0 357 0 vmsppl 368 15529 0 15381 14 0 14 14 0 8 0 rwobjpl 56 379884 0 370405 158 24 134 134 0 8 0 pdppl 4096 31067 0 30881 996 808 188 188 0 8 2 pvpl 32 6142831 0 6118966 674 419 255 333 0 265 4 pmappl 248 15529 0 15381 10 0 10 10 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 2588 0 1152 42 0 42 42 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff825ab66f) at panic+0x177 sys/kern/subr_prf.c:198 __assert(ffffffff8261ef84,ffffffff825962d9,4f5,ffffffff825cca51) at __assert+0x25 sys/kern/subr_prf.c:157 uvm_pageunwire(fffffd800703a600) at uvm_pageunwire+0x16b sys/uvm/uvm_page.c:1269 uvm_fault_unwire_locked(fffffd807cd915f0,afbcb522000,afbcb721000) at uvm_fault_unwire_locked+0x226 sys/uvm/uvm_fault.c:1682 uvm_unmap_kill_entry_withlock(fffffd807cd915f0,fffffd8078d6b268,0) at uvm_unmap_kill_entry_withlock+0x67 sys/uvm/uvm_map.c:1913 uvm_map_teardown(fffffd807cd915f0) at uvm_map_teardown+0x197 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline] uvm_map_teardown(fffffd807cd915f0) at uvm_map_teardown+0x197 sys/uvm/uvm_map.c:2562 uvmspace_free(fffffd807cd915f0) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3480 reaper(ffff800021232fc8) at reaper+0x19a sys/kern/kern_exit.c:448 end trace frame: 0x0, count: -9 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffff800020dd8ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff82aaefe8) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82aaefe8) at __mp_lock+0x122 sys/kern/kern_lock.c:147 vn_closefile(fffffd8074b17578,ffff80002be4ba40) at vn_closefile+0x34 sys/kern/vfs_vnops.c:602 fdrop(fffffd8074b17578,ffff80002be4ba40) at fdrop+0xc7 sys/kern/kern_descrip.c:1274 closef(fffffd8074b17578,ffff80002be4ba40) at closef+0x11c sys/kern/kern_descrip.c:1258 syscall(ffff80002130c230) at syscall+0x4c3 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff80002130c230) at syscall+0x4c3 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6ced34dfad0, count: 6 ddb{1}> trace x86_ipi_db(ffff800020dd8ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff82aaefe8) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82aaefe8) at __mp_lock+0x122 sys/kern/kern_lock.c:147 vn_closefile(fffffd8074b17578,ffff80002be4ba40) at vn_closefile+0x34 sys/kern/vfs_vnops.c:602 fdrop(fffffd8074b17578,ffff80002be4ba40) at fdrop+0xc7 sys/kern/kern_descrip.c:1274 closef(fffffd8074b17578,ffff80002be4ba40) at closef+0x11c sys/kern/kern_descrip.c:1258 syscall(ffff80002130c230) at syscall+0x4c3 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff80002130c230) at syscall+0x4c3 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6ced34dfad0, count: -9